what is the role of russia and the u.n., and the regional powers? talk to them about the humanitarian situation, but also prevent the damage with syrian heritage. syria is a historic place. there is a danger of looting of museums and other historic sites. >> this is what you saw as ambassador. thank you for coming. >> beyond syria, the middle east has been transformed by the unrest unleashed two years ago. and this week has special coverage of the arab spring. in bahrain, an unresolved conflict. >> bahrain is an old ally of the west. its rulers say they are doing all the can to perform the country. even the united states once they are moving too slowly, and could fragment. the police took us on patrol to see the violent side of an intractable political battle about the country's future. >> mostly teenagers. they are pushed by higher leaders. >> demonstrators opposed videos on youtube of what they do. the police said there was fun, using only -- police said they used force only to protect civilians. but we went to a protest about what they said were